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Try multiple line label positions

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Ansis Brammanis
2013-01-22 14:04:19 -05:00
parent 14272ef200
commit 0249d6b3eb
1 changed files with 27 additions and 15 deletions
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js/id/svg/labels.js
+27 -15
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@@ -13,6 +13,10 @@ iD.svg.Labels = function(projection) {
[-15, 3, 'end'], // left
];
var lineOffsets = [
50, 40, 60, 30, 70
]
var height = 12,
width = 6;
@@ -22,20 +26,21 @@ iD.svg.Labels = function(projection) {
var texts = group.selectAll('text.' + classes)
.filter(filter)
.data(labels, iD.Entity.key);
.data(labels, iD.Entity.key)
var tp = texts.enter()
.append('text')
.attr({ 'class': classes})
.append('textPath')
.attr({
'class': 'textpath',
'startOffset': '50%'
'class': 'textpath'
});
var tps = group.selectAll('.textpath-label .textpath')
.data(labels)
.attr({
'startOffset': position('startOffset'),
'xlink:href': function(d, i) { return '#casing-' + d.id},
'glyph-orientation-vertical': function(d, i) {return reverse(d, i) ? 180 : 0},
'glyph-orientation-horizontal': function(d, i) {return reverse(d, i) ? 180 : 0},
@@ -180,18 +185,25 @@ iD.svg.Labels = function(projection) {
w = width * entity.tags.name.length;
if (length < w + 20) return;
var ends = (length - w) / 2,
sub = subpath(nodes, ends, length - ends),
rev = reverse(sub),
rect = new RTree.Rectangle(
Math.min(sub[0][0], sub[sub.length - 1][0]) - 5,
Math.min(sub[0][1], sub[sub.length - 1][1]) - 5,
Math.abs(sub[0][0] - sub[sub.length - 1][0]) + 10,
Math.abs(sub[0][1] - sub[sub.length - 1][1]) + 10
);
if (tryInsert(rect)) return {
reverse: rev
};
// 50, 40, 60, 30, 70
for (var i = 0; i < 5; i ++) {
var offset = lineOffsets[i],
middle = offset / 100 * length;
if (middle < w / 2) return;
var start = middle - w/2,
sub = subpath(nodes, start, start + w),
rev = reverse(sub),
rect = new RTree.Rectangle(
Math.min(sub[0][0], sub[sub.length - 1][0]) - 10,
Math.min(sub[0][1], sub[sub.length - 1][1]) - 10,
Math.abs(sub[0][0] - sub[sub.length - 1][0]) + 20,
Math.abs(sub[0][1] - sub[sub.length - 1][1]) + 20
);
if (tryInsert(rect)) return {
reverse: rev,
startOffset: offset + '%'
}
}
}
function getAreaLabel(entity) {